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E. SEYBOLD,

LETTER AND BILL FILE. v N0. 5'36,0 49.-. Patented Mar 19, 1895.

' (No m.) 2 Sheets-Sheet 2. E. SBYBOLD. I LETTER. AND BILL FILE. No.536,049. Patented Mar. 19, 1895.

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UNITED STATES PATENT OFFICE.

EDWARD SEYBOLD, OF OTTAWA, CANADA, ASSIGNOR TO THE ECLIPSE .OFFICEFURNITURE COMPANY, LIMITED, OF SAME PLACE.

LETTER AND BILL FlLE.

SPECIFICATION forming part of Letters Patent No. 536,049, dated March19, 1895. Application filed Tanuary 11, 1395- Serial No. 534,534- (ITomodel.)

To all whom it may concern."

Be it known that I, EDWARDSEYBOLD, of the city of Ottawa,in the Provinceof Ontario and Dominion of Canada, have inventedcertain new and usefulImprovements in Letter and Bill Files; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawings, forming a part hereof.

My invention, which will be hereinafter fully set forth and claimed,relates to that class of letter and bill files consisting of a suitablebacking or file board which carries impaling wires and movable arches.

The object of my invention is a letter and bill file of very simpleconstruction and inexpensive manufacture, so as to adapt it as a filefor domestic and .minor commercial and office use, enabling it to besold at a mere nominal retail price.

Figure 1 is a perspective view of my improved file, showing the archesopen. Fig.2 is a perspective view of part of the backing or file boardwith sub-base attached. Fig. 3 is atop view of the base-plate, showingthe wires in horizontal section. Fig. 4 is a bottom view ofthe same.Fig. 5 is a section on line 5 5 Fig. 1, being through one of the eyeletsby which the sub-base is secured to the file board and showing thearches disengaged from the impaling wires but not thrown back. Fig. 6 isa view of the points locked and Fig. 7 is a transverse section of thelocked points.

Wood has come to be regarded as the proper material for the backs orfile boards of the better class files. As a plain board, however, wouldtwist and warp and be thus non-serviceable, these backs or file boardshave hitherto been made of strips joined and glued together and byalternating light and dark wood, such as walnut and ash, a pretty effecthas been produced combined with durability. The eyes of the trade aswell as the user have therefore by this time. instinctively come to lookfor the light ahd dark wood-effect in file boards; but this compositewooden file board is comparatively expensive and for certain purposes astout hard mill board answers the same purpose and is much cheaper. Ofsuch material I make the back or file board A, of my improved file andto produce the light and dark wood-efiect, I cover it with a paper orother tissue printed or lithographed to imitate alternate strips oflight and dark woods. To facilitate packing, a sheet metal sub-base, B,is permanently secured to it by rivets, preferably eyelet rivets, a.'Said sub-base has its sides turned up and over to form slides, b,adapted to hold the edges of the base-plate and at the back or upperedge cars, 27', are turned up and over to form stops for the back orupper edge of the base-plate. The front or lower edge of said sub-baseis provided with a projection or lug, I), left fiat at first, as shownin Fig. 2, but turned up and over the front or lower edge of thebase-plate after the latter has been placed in position thereon, asshown in Fig. 1.

The base-plate C isa metallic plate adapted to hold the stationary frontor impaling wires, D, and the hinged arch or transfer wires, E, at therear or upper end. Said base is stamped with raised, diagonally disposedridges, c, to give it stiffness and to form at its bottom surface aconvenient receptacle for the cross shank of the impaling wires and atits upper or back edge with projecting lugs, c, which are turned up andcurled over to form the bearings for the hinged arch wires and also witha central perforated projection, c, to form an eye by which it may behung up.

The front or impaling wires D are formed in one piece and its crossshank (1 follows the angular direction of the front or lower part of theridges c, in which it is sunk, the up rights or pins being inserted frombelow through suitable perforations and secured, together with the crossshank, with solder. The angular shape of the cross shank prevents itfrom turning and thus gives to the upright portions a strong positionand preventing it from yielding to a downward or forward pull, solderbeing merely used to solidify theparts. The arch or transfer wires arealso made in one piece by a cross shank e which forms the journal andwhich is provided with a downward or forward projecting central foot orloop e, set at such an angle to the upright shanks that when the saidloop rests on the base-plate, the points of the arch do not touch thepoints of the impaling wires but require a little strain to bring theminto contact. At either side of the loop e the cross shank is journaledin the bearings c.

As this class of file is intended to be and is generally used without aperforator, the points of the impaling wires require to be well adaptedto puncture and penetrate the paper readily without tearing and for thispurpose asharp smooth point is essential. To provide this condition theupper ends 01" of the im paling wires D are beveled at the front orlower side and also from both sides, so as to form what may be called atriangular point at the rear of each, being V shaped in cross section,as shown in Fig. 7. The downward projecting ends e" of the arches areshaped to form the counterparts, each having a tri angular groovesloping from the inner side forward and downward, thus forming thefemale part of the joint adapted to receive the beveled point of theinipaling wire.

To connect or interlock the points d e, which the loop or foot e keepsapart, it is necessary to press the arch points e forward and a littlesidewise, when they slip past the points d and in front of them, thecounterparts engaging and interlocking with each other, the V section ofthe joint preventing lateral displacement and the slight tension of theparts maintaining engagement and preventing looseness. \Vhen open theends d" present sharp points well adapted for puncturing paper.

I claim as my invention 1. In a letter and bill file, the combination ofa file board A covered with tissue representing alternate strips ofwood, a sub-base B permanently secured to it and adapted to receive andhold a base-plate, a base-plate C stamped with diagonal ridges tostiffen it and form a recess for the reception of the cross shank of theiinpaling wires and provided with bearings for the arch wires and with aperforation, stationary impaling wires on a cross shank ofangular-outline secured in part of said ridges and having their pointsbeveled from both sides to form a V shaped downward sloping edge andhinged arch wires at the rear connected by a cross shank jonrnaled onthe base plate and provided with a forward projecting loop and havingtheir points slopingly V grooved to form counterparts of the points ofthe impaling wires, substantially as set forth.

2. In a letter and bill file, the combination of a base-plate stampedwith diagonally disposed ridges and having bearings for the arch wires,stationary impaling wires, on a cross shank of angular outline securedin said ridges and having beveled V sectioned points, hinged arch wireshaving V grooved points forming the counterparts of the points of theimpaliug wires and journaled byits cross shank to said plate and saidcross shank provided with a forward projectingloop bearing on said plateand keeping the points pressed together when they have passed oneanother and are in engagement, substantially as set forth.

In testimony whereof I have signed in the presence of the undersignedwitnesses.

EDWARD SEYBOLD.

Witnesses:

W. E. TALBOT, CHARLES V. INGHAM.

